diff options
| -rw-r--r-- | src/gallium/drivers/svga/svga_format.c | 156 | ||||
| -rw-r--r-- | src/gallium/drivers/svga/svga_format.h | 7 |
2 files changed, 163 insertions, 0 deletions
diff --git a/src/gallium/drivers/svga/svga_format.c b/src/gallium/drivers/svga/svga_format.c index 374f54d9778..51761069788 100644 --- a/src/gallium/drivers/svga/svga_format.c +++ b/src/gallium/drivers/svga/svga_format.c @@ -580,3 +580,159 @@ svga_get_format_cap(struct svga_screen *ss, /* Unsupported format */ caps->value = 0; } + + +/** + * Return block size and bytes per block for the given SVGA3D format. + * block_width and block_height are one for uncompressed formats and + * greater than one for compressed formats. + * Note: we don't handle formats that are unsupported, according to + * the format_cap_table above. + */ +void +svga_format_size(SVGA3dSurfaceFormat format, + unsigned *block_width, + unsigned *block_height, + unsigned *bytes_per_block) +{ + *block_width = *block_height = 1; + + switch (format) { + case SVGA3D_X8R8G8B8: + case SVGA3D_A8R8G8B8: + *bytes_per_block = 4; + return; + + case SVGA3D_R5G6B5: + case SVGA3D_X1R5G5B5: + case SVGA3D_A1R5G5B5: + case SVGA3D_A4R4G4B4: + *bytes_per_block = 2; + return; + + case SVGA3D_Z_D32: + *bytes_per_block = 4; + return; + + case SVGA3D_Z_D16: + *bytes_per_block = 2; + return; + + case SVGA3D_Z_D24S8: + *bytes_per_block = 4; + return; + + case SVGA3D_Z_D15S1: + *bytes_per_block = 2; + return; + + case SVGA3D_LUMINANCE8: + case SVGA3D_LUMINANCE4_ALPHA4: + *bytes_per_block = 1; + return; + + case SVGA3D_LUMINANCE16: + case SVGA3D_LUMINANCE8_ALPHA8: + *bytes_per_block = 2; + return; + + case SVGA3D_DXT1: + case SVGA3D_DXT2: + *block_width = *block_height = 4; + *bytes_per_block = 8; + return; + + case SVGA3D_DXT3: + case SVGA3D_DXT4: + case SVGA3D_DXT5: + *block_width = *block_height = 4; + *bytes_per_block = 16; + return; + + case SVGA3D_BUMPU8V8: + case SVGA3D_BUMPL6V5U5: + *bytes_per_block = 2; + return; + + case SVGA3D_BUMPX8L8V8U8: + *bytes_per_block = 4; + return; + + case SVGA3D_ARGB_S10E5: + *bytes_per_block = 8; + return; + + case SVGA3D_ARGB_S23E8: + *bytes_per_block = 16; + return; + + case SVGA3D_A2R10G10B10: + *bytes_per_block = 4; + return; + + case SVGA3D_Q8W8V8U8: + *bytes_per_block = 4; + return; + + case SVGA3D_CxV8U8: + *bytes_per_block = 2; + return; + + case SVGA3D_X8L8V8U8: + case SVGA3D_A2W10V10U10: + *bytes_per_block = 4; + return; + + case SVGA3D_ALPHA8: + *bytes_per_block = 1; + return; + + case SVGA3D_R_S10E5: + *bytes_per_block = 2; + return; + case SVGA3D_R_S23E8: + *bytes_per_block = 4; + return; + case SVGA3D_RG_S10E5: + *bytes_per_block = 4; + return; + case SVGA3D_RG_S23E8: + *bytes_per_block = 8; + return; + + case SVGA3D_BUFFER: + *bytes_per_block = 1; + return; + + case SVGA3D_Z_D24X8: + *bytes_per_block = 4; + return; + + case SVGA3D_V16U16: + *bytes_per_block = 4; + return; + + case SVGA3D_G16R16: + *bytes_per_block = 4; + return; + + case SVGA3D_A16B16G16R16: + *bytes_per_block = 8; + return; + + case SVGA3D_Z_DF16: + *bytes_per_block = 2; + return; + case SVGA3D_Z_DF24: + *bytes_per_block = 4; + return; + case SVGA3D_Z_D24S8_INT: + *bytes_per_block = 4; + return; + + default: + debug_printf("format %u\n", (unsigned) format); + assert(!"unexpected format in svga_format_size()"); + *bytes_per_block = 4; + } +} diff --git a/src/gallium/drivers/svga/svga_format.h b/src/gallium/drivers/svga/svga_format.h index 9ea9e05631d..94c867acf77 100644 --- a/src/gallium/drivers/svga/svga_format.h +++ b/src/gallium/drivers/svga/svga_format.h @@ -27,6 +27,7 @@ #define SVGA_FORMAT_H_ +#include "pipe/p_format.h" #include "svga_types.h" #include "svga_reg.h" #include "svga3d_reg.h" @@ -45,5 +46,11 @@ svga_get_format_cap(struct svga_screen *ss, SVGA3dSurfaceFormat format, SVGA3dSurfaceFormatCaps *caps); +void +svga_format_size(SVGA3dSurfaceFormat format, + unsigned *block_width, + unsigned *block_height, + unsigned *bytes_per_block); + #endif /* SVGA_FORMAT_H_ */ |